US Bridges

Ramp B Seminary RD over Van Dorn Street

Fair

Fairfax County, Virginia · 0.40FR BEAU/0.44TO Jor ST · Structure no. 000000000019888

Built
1970
55 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
1 main span
Daily traffic
117,700
1989 count
Owner
State
State Highway Agency

About this bridge

Ramp B Seminary RD over Van Dorn Street is a steel stringer/multi-beam or girder carrying Ramp B Seminary RD over Van Dorn Street in Fairfax County, Virginia. It was built in 1970, so it is 55 years old, older than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 117,700 vehicles a day, roughly 2% of them trucks, projected to reach 264,457 by 2040. The structure is 83 ft (25.3 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesRamp B Seminary RD
CrossesVan Dorn Street
Location0.40FR BEAU/0.44TO Jor ST
RouteInterstate 420
CountyFairfax County
StateVirginia
Coordinates38.82934, -77.11336
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating51.9 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length83 ft (25.3 m)
Longest span83 ft (25.3 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic117,700 (1989)
Projected traffic264,457 by 2040
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$32 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp B Seminary RD over Van Dorn Street built?

It was built in 1970, making it 55 years old in 2025.

What condition is Ramp B Seminary RD over Van Dorn Street in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Ramp B Seminary RD over Van Dorn Street carry?

About 117,700 vehicles per day (1989 count), of which roughly 2% are trucks.

How long is Ramp B Seminary RD over Van Dorn Street?

The structure is 83 ft (25.3 m) long with a longest span of 83 ft (25.3 m) and a deck 33 ft wide.

Who owns Ramp B Seminary RD over Van Dorn Street?

It is owned by the State Highway Agency.